China's 'Silk Road' project runs into debt jam

China's President Xi Jinping says trade with Belt and Road countries has exceeded $5 trillion

China's massive and expanding "Belt and Road" trade infrastructure project is running into speed bumps as some countries begin to grumble about being buried under Chinese debt.

First announced in 2013 by President Xi Jinping, the initiative also known as the "new Silk Road" envisions the construction of railways, roads and ports across the globe, with Beijing providing billions of dollars in loans to many countries.